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Design, simulation, test, prototyping and high performance computing.

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Information, coverage of important developments and expert commentary in manufacturing.

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The preferred metric screw thread is the Coarse Thread Pitch. If this is not suitable due to wall thickness and space considerations, the Fine Thread Pitch is available. 
 
Size (mm) Pitch (mm) Tap Drill (mm) Clearance Drill (mm)
 1.6  0.35  1.25  1.8
 2  0.4  1.60  2.4
 2.5  0.45  2.00  2.90
 3  0.5  2.50  3.40
 3.5  0.6  2.90  3.90
 4  0.7  3.30  4.50
 5  0.8  4.20  5.50
 6  1  5.00  6.60
 8  1.25  6.80  9.00
 10  1.5  8.50  12.00
 12  1.75  10.20  14.00
 14  2  12.00  16.00
 16  2  14.00  18.00
 20  2.5  17.50  22.00
 22  2.5  19.50  25.00
 24  3  21.00  27.00
 27  3  24.00  30.00
 30  3.5  26.50  33.00
 36  4  32.00  40.00
 42  4.5  37.50  46.00
 48  5  43.00  53.00
 56  5.5  50.50  62.00
 64  6  58.00  70.00
 72  6    
 80  6    
 90  6    
 100  6    
Glossary